Running tests on JDK11 for branch 1.6.x

On 1.6.x branch I am having trouble to test with JDK11
noformat
git checkout 1.6.x
. java_oracle_8.sh
mvn clean test -DskipTests
. java_oracle_11.sh
mvn test -Dmaven.main.skip=true
...
Error occurred during initialization of boot layer
java.lang.module.FindException: Module java.corba not found

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.427 s
[INFO] Finished at: 2018-11-05T09:49:17+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (default-test) on project wildfly-elytron: ExecutionException The forked VM terminated without properly saying goodbye. VM crash or System.exit called?
[ERROR] Command was /bin/sh -c cd /home/mchoma/git-repo/wildfly-elytron && /home/mchoma/app/oracle-jdk-11+28/bin/java -javaagent:/home/mchoma/.m2/repository/org/jmockit/jmockit/1.33/jmockit-1.33.jar --add-modules java.corba,java.sql --illegal-access=permit -Djdk.attach.allowAttachSelf=true -jar /home/mchoma/git-repo/wildfly-elytron/target/surefire/surefirebooter10245887984403962786.jar /home/mchoma/git-repo/wildfly-elytron/target/surefire/surefire10250982648577178380tmp /home/mchoma/git-repo/wildfly-elytron/target/surefire/surefire_04789553250451761755tmp
...
noformat

Workaround exists. I havet to redefine

modular.jdk.args

from

<modular.jdk.args>--add-modules java.corba,java.sql --illegal-access=permit</modular.jdk.args>

to

-Dmodular.jdk.args="--add-modules java.sql --illegal-access=permit"